Home / 107,847.80-161,624.02-68,432.60

Finding the Fourth Proportional to 107,847.80, 161,624.02 and 68,432.60

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Solution

The fourth proportional to 107,847.80, 161,624.02 and 68,432.60 is: 102,555.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,847.80 : 161,624.02 = 68,432.60 : x
  2. Step 2: Convert to fraction form
    107,847.80/161,624.02 = 68,432.60/x
  3. Step 3: Cross multiply
    107,847.80x = 161,624.02 × 68,432.60
  4. Step 4: Simplify right side
    107,847.80x = 11,060,351,911.05
  5. Step 5: Solve for x
    x = 11,060,351,911.05/107,847.80
  6. Step 6: Final answer
    x = 102,555.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.